Earth
Cold climate may have driven ancient humans’ move out of Africa
East Africa became colder and drier around 75,000 years ago, just when modern humans were apparently migrating out of Africa
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East Africa became colder and drier around 75,000 years ago, just when modern humans were apparently migrating out of Africa
After falling for over a decade, the number of people going hungry has risen again - and climate change and war are to blame